Aragonite and Siderite Physical Properties

Aragonite

Siderite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Dilute acid

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.93-2.963.83-3.89

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

Distinct on {010}, imperfect {110} and {011}

Perfect on {01 1 1}

1.7 Mohs Hardness

3.5-43.5-4.5

2 10

1.8 Chemical Composition

CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Aragonite and Siderite Chemical Formula

While comparing Aragonite and Siderite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Aragonite and Siderite chemical formula.

Chemical formula of Aragonite- CaCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Gems for Virgo

Aragonite Vs Variscite

Aragonite Vs Zircon

Aragonite Vs Peridot

Aragonite and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Aragonite and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Aragonite and Siderite Optical Properties during the identification of gemstone. Specific gravity of Aragonite is 3.83-3.89 whereas that of Siderite is 3.83-3.89.